I think the comic also refers to another experiment where pigeons received a snack from a dispenser at totally random times. The pigeons, thinking that whatever it is they did last helped trigger the release of food would develop a complex ritual dance to receive food. (http://psychclassics.yorku.ca/Skinner/Pigeon/)
The title text may also be a reminder that despite signal strength being important enough to some humans to act in an insanity-suggesting manner, it is not an essential need of a living organism, as the rats visibly demonstrate. --Koveras (talk) 08:47, 8 December 2014 (UTC)
I thought 'reception' and 'wireless signal' referred to the cellular signal. That caused a lot of issues with the iphone and others.